Integrated Change Detection Method for Landslide Monitoring

This paper presents change detection method for landslide monitoring using image registration and change conditional statement approach. It is based on the invocation of deformation operators which imitate the deformations expected to be observed when a landslide occurs. The similarity between two images is measured by a similarity function which takes into consideration value of mutual information, geometric deformation and maximum overlapping area between the two images. A map of landslide areas is created by using the amount of pixel movement during a registration process. This map is then thresholded in order to produce map of change and unchanged areas. The conditional logic statement of change and unchanged conditions is implemented in order to produce the same type of map. Both maps are then compared for its consistency. From the results,it has been shown that both maps give almost similar location of change and unchanged location with less than 4% of mistmatch locations.